阅读说明：本技术 具有多路输出压力检测的汽车电子制动系统 (Automobile electronic brake system with multi-output pressure detection ) 是由 杨晶晶 魏凌涛 谭汉斌 李晨风 于 2021-10-13 设计创作，主要内容包括：本发明公开了具有多路输出压力检测的汽车电子制动系统,包括ECU安装座,所述ECU安装座的上部分别设置有若干个轮缸压力传感器和主缸压力传感器,所述ECU安装座的上部设置有ECU壳体,所述ECU壳体的内部设置有ECU终端,且所述ECU壳体的一侧设置有传感器壳体,所述传感器壳体套设在所述四个所述轮缸压力传感器的表面,所述传感器壳体的顶部内壁上设置有PCB板,所述PCB板上设置有处理器、检测模块、存储模块和通讯模块,所述处理器与所述ECU终端电性连接。本发明不仅能够自动对各个轮缸压力进行精确检测和判断主缸压力传感器在工作过程中是否出现故障,同时减轻了ECU终端在运行过程中的运载负荷,提高了运行效率。(The invention discloses an automobile electronic brake system with multi-path output pressure detection, which comprises an ECU mounting seat, wherein the upper part of the ECU mounting seat is respectively provided with a plurality of wheel cylinder pressure sensors and a master cylinder pressure sensor, the upper part of the ECU mounting seat is provided with an ECU shell, an ECU terminal is arranged in the ECU shell, one side of the ECU shell is provided with a sensor shell, the sensor shell is sleeved on the surfaces of the four wheel cylinder pressure sensors, the inner wall of the top of the sensor shell is provided with a PCB, the PCB is provided with a processor, a detection module, a storage module and a communication module, and the processor is electrically connected with the ECU terminal. The invention not only can automatically and accurately detect the pressure of each wheel cylinder and judge whether the master cylinder pressure sensor has a fault in the working process, but also reduces the carrying load of the ECU terminal in the running process and improves the running efficiency.)

1. Automobile electronic braking system with multiplexed output pressure detection, including ECU mount pad (1), its characterized in that: the upper portion of ECU mount pad (1) is provided with a plurality of wheel cylinder pressure sensor (2) and master cylinder pressure sensor (3) respectively, the upper portion of ECU mount pad (1) is provided with ECU casing (4), the inside of ECU casing (4) is provided with the ECU terminal, just one side of ECU casing (4) is provided with sensor casing (5), sensor casing (5) cover is established four the surface of wheel cylinder pressure sensor (2), be provided with PCB board (6) on the top inner wall of sensor casing (5), be provided with treater, detection module, storage module and communication module on PCB board (6), the treater with ECU terminal electric connection, wheel cylinder pressure sensor (2) with master cylinder pressure sensor (3) all with treater electric connection.

2. The automotive electric brake system with multiplexed output pressure detection of claim 1, wherein: one side of the sensor shell (5) is provided with a connecting pipe (7), one side of the ECU shell (4) is provided with a connecting hole, and the connecting pipe (7) is arranged in the connecting hole.

3. The automotive electric brake system with multiplexed output pressure detection of claim 1, wherein: and a plurality of wheel cylinder oil ports (8) are formed in one side of the ECU mounting seat (1).

4. The automotive electric brake system with multiplexed output pressure detection of claim 1, wherein: the bottom of the sensor shell (5) is provided with a connecting plate, and the connecting plate is connected with the top of the ECU mounting seat (1) through screws.

5. The automotive electric brake system with multiplexed output pressure detection of claim 1, wherein: the sensor comprises a sensor shell (5) and is characterized in that a limiting groove is formed in the top of the sensor shell (5), a plurality of bolt grooves are formed in the limiting groove, a PCB (6) is arranged in the limiting groove, and the PCB (6) is fixed in the limiting groove through bolts.

6. The automotive electric brake system with multiplexed output pressure detection of claim 1, wherein: the ECU mounting seat (1) is provided with four pressure increasing valves (9), four pressure reducing valves (10), two suction valves (11) and two pressure limiting valves (12).

7. The automotive electric brake system with multiplexed output pressure detection of claim 1, wherein: the bottom of the ECU mounting seat (1) is provided with a connecting column (13).

8. The automotive electric brake system with multiplexed output pressure detection of claim 4, wherein: the bottom of connecting plate is provided with sealed the pad, sealed pad with the junction of ECU mount pad (1) is sealed through sealed glue.

Technical Field

The invention relates to the technical field of automobile wheel cylinder pressure detection, in particular to an automobile electronic brake system with multi-path output pressure detection.

Background

The ESC of the automobile drives the plunger pump to move through the motor to realize the active pressurization function, and different pressures of the active pressurization are realized through different rotating speeds of the motor and different opening degrees of the electromagnetic valve, so that different decelerations of the automobile are achieved. However, the output pressure is adjusted by the rotation speed of the motor and the opening degree of the electromagnetic valve, so that the wheel pressure cannot be accurately controlled, and the deceleration cannot be accurately regulated.

In the existing ESC, when functions such as ABS and the like are triggered, the processes of pressure increasing, pressure reducing and pressure maintaining of the wheel cylinder pressure need to be realized through the switch of the electromagnetic valve, and in the prior art, the accurate control of the wheel cylinder pressure is difficult to realize only through the switch of the electromagnetic valve because the real-time accurate acquisition of the wheel cylinder pressure cannot be realized, so that the control effect of ABS and the like under the scene of needing independent adjustment of the wheel cylinder pressure is limited. In addition, in the prior art, since the wheel cylinder pressure cannot be directly obtained, it is difficult to determine whether or not the components (pressure increasing valve, pressure reducing valve, plunger pump, motor, master cylinder pressure sensor) in the ESC have a failure directly from the state of the wheel cylinder pressure, and during operation, signals of the wheel cylinder pressure sensor and the master cylinder pressure sensor are all transmitted to the EUC for processing, so that the operation load of the ECU increases, the processing of other circuits is affected, and the pressure detection speed is also delayed.

Disclosure of Invention

The present invention is directed to an electronic brake system with multiple outputs for automobile to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: automobile electronic brake system with multiplexed output pressure detects, including the ECU mount pad, the upper portion of ECU mount pad is provided with a plurality of wheel cylinder pressure sensor and master cylinder pressure sensor respectively, the upper portion of ECU mount pad is provided with the ECU casing, the inside of ECU casing is provided with the ECU terminal, just one side of ECU casing is provided with the sensor casing, the sensor casing cover is established four wheel cylinder pressure sensor's surface, be provided with the PCB board on the top inner wall of sensor casing, be provided with treater, detection module, storage module and communication module on the PCB board, the treater with ECU terminal electric connection, wheel cylinder pressure sensor with master cylinder pressure sensor all with treater electric connection.

Preferably, a connecting pipe is arranged on one side of the sensor shell, a connecting hole is formed in one side of the ECU shell, and the connecting pipe is arranged in the connecting hole.

Preferably, one side of the ECU mounting seat is provided with a plurality of wheel cylinder oil ports.

Preferably, the bottom of the sensor housing is provided with a connecting plate, and the connecting plate is connected with the top of the ECU mounting seat through a screw.

Preferably, a limiting groove is formed in the top of the sensor shell, a plurality of bolt grooves are formed in the limiting groove, the PCB is arranged in the limiting groove, and the PCB is fixed in the limiting groove through bolts.

Preferably, the ECU mounting seat is provided with four pressure increasing valves, four pressure reducing valves, two suction valves and two pressure limiting valves.

Preferably, the bottom of the ECU mounting seat is provided with a connecting column.

Preferably, the bottom of connecting plate is provided with sealed the pad, sealed pad with sealed the junction of ECU mount pad is sealed through sealed glue.

Compared with the prior art, the invention has the beneficial effects that: the method is characterized in that fault diagnosis of a pressure increasing valve, a pressure reducing valve, a main cylinder pressure sensor and the like is realized through a newly-added wheel cylinder pressure sensor, mutual verification is carried out on the value of the wheel cylinder pressure sensor, the value of the main cylinder pressure sensor and the wheel cylinder pressure estimated based on a control instruction in a processor, when one of the values has obvious deviation, a component with a fault is judged according to logic, fault detection is convenient, meanwhile, a PCB is arranged, the processor, a detection module and a communication module are arranged on the PCB, signals of the main cylinder pressure sensor and the wheel cylinder pressure sensor can be collected and processed, and a detected final result is sent to an ECU terminal, so that the operation load of the ECU terminal is reduced, and the real-time detection efficiency is improved.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic illustration of a front view of the explosive structure of the present invention;

FIG. 3 is a schematic sectional front view of a sensor housing and an ECU housing according to the present invention;

FIG. 4 is a schematic bottom sectional view of a sensor housing according to the present invention;

fig. 5 is a schematic diagram of a module connection control structure according to the present invention.

In the figure: 1. an ECU mounting seat; 2. a wheel cylinder pressure sensor; 3. a master cylinder pressure sensor; 4. an ECU housing; 5. a sensor housing; 6. a PCB board; 7. a connecting pipe; 8. a wheel cylinder oil port; 9. a pressure increasing valve; 10. a pressure reducing valve; 11. a suction valve; 12. a pressure limiting valve; 13. connecting columns.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the automobile electronic brake system with the function of multi-path output pressure detection comprises an ECU mounting seat 1, wherein the upper part of the ECU mounting seat 1 is respectively provided with a plurality of wheel cylinder pressure sensors 2 and a master cylinder pressure sensor 3, 1-4 pressure sensors are arranged to measure wheel cylinder pressure, and different numbers of pressure sensors can be arranged according to different requirements; the arrangement position of the pressure sensor can be adjusted by installing a fabrication hole on the body, the ECU shell 4 is installed on the upper part of the ECU mounting seat 1, the ECU terminal is installed in the ECU shell 4, a sensor shell 5 is installed on one side of the ECU shell 4, the sensor shell 5 is installed independently, the pressure sensor shell 5 comprises a fixed position of a PCB 6, the sensor shell 5 is fixed on the ECU mounting seat 1 through bolts, the relative positions of the pressure sensor shell 5 and the ESC shell are not changed, the sensor shell 5 is sleeved on the surfaces of the four wheel cylinder pressure sensors 2, the PCB 6 is installed on the inner wall of the top of the sensor shell 5, a processor, a detection module, a storage module and a communication module are installed on the PCB 6, the processor is electrically connected with the ECU terminal, and the wheel cylinder pressure sensors 2 and the master cylinder pressure sensor 3 are both electrically connected with the processor;

a connecting pipe 7 is installed on one side of the sensor shell 5, a connecting hole is formed on one side of the ECU shell 4, the connecting pipe 7 is installed in the connecting hole, a plurality of wheel cylinder oil ports 8 are installed on one side of the ECU mounting seat 1, a connecting plate is installed at the bottom of the sensor shell 5, the connecting plate is connected with the top of the ECU mounting seat 1 through screws, a limiting groove is formed in the top of the sensor shell 5, a plurality of bolt grooves are formed in the limiting groove, a PCB 6 is installed in the limiting groove, the PCB 6 is fixed in the limiting groove through bolts, four pressure increasing valves 9, four pressure reducing valves 10, two suction valves 11 and two pressure limiting valves 12 are installed on the ECU mounting seat 1, the wheel cylinder pressure sensor 2 realizes fault diagnosis of the pressure increasing valves 9, the pressure reducing valves 10, the master cylinder pressure sensor 3 and the like, the numerical value of the wheel cylinder pressure sensor 2, the numerical value of the master cylinder pressure sensor 3 and the wheel cylinder pressure estimated based on a control instruction are mutually verified, when one component has obvious deviation, the faulty component is judged according to logic, the connecting column 13 is installed at the bottom of the ECU mounting seat 1, the sealing gasket is installed at the bottom of the connecting plate, and the joint of the sealing gasket and the ECU main body is sealed through sealing glue.

The working principle is as follows: the body of the ECU mounting seat 1 is lengthened at the wheel cylinder oil port 8, the wheel cylinder oil port 8 is mounted on one side of the ECU mounting seat 1, the wheel cylinder pressure sensor 2 is mounted on the upper portion of the ECU mounting seat 1, pressure signals of four wheel cylinders are detected, a PCB 6 for collecting signals of the wheel cylinder pressure sensor 2 is added, a processor on the PCB 6 collects signals of the four wheel cylinder pressure sensors 2, because the ECU shell 4 is not provided with the PCB 6 of the wheel cylinder pressure sensor 2 at a reserved position in the prior art, in order to ensure the fixation of the PCB 6, a sensor shell 5 is added to be connected with the ECU shell 4, is communicated with the ECU shell 4 through a connecting pipe 7, is connected with the ECU terminal through a connecting pipe 7 by wire inlet, transmits the signals to the ECU terminal, the sensor shell 5 is connected with the body through screws, the connecting part is sealed by a sealing gasket and a sealing glue, in the using process, when it is confirmed that the wheel cylinder pressure sensor 2 is normal: the processor firstly detects whether the wheel cylinder pressure sensor 2 is normal through the detection module and then judges the master cylinder pressure and the wheel cylinder pressure, when the pressure detected by the master cylinder pressure sensor 3 is transmitted to the processor, and simultaneously, the signal detected by the wheel cylinder pressure sensor 2 is also transmitted to the processor, and when the deviation of the pressure detected by the processor, between the pressure of the master cylinder pressure sensor 3 and the pressure of the wheel cylinder pressure sensor 2, is obviously greater than a threshold value, and the condition is met for each wheel, the processor judges that the master cylinder pressure sensor 3 has a fault, and then directly transmits the result to the ECU terminal through the communication module; when all the electromagnetic valves are not operated, and the deviation between the master cylinder pressure and the two or more wheel cylinder pressures is found to be smaller than the threshold value after the sensor processing, the master cylinder pressure sensor 3 is judged to be normal, and the detection result is sent to the ECU terminal, so that the operating pressure of the ECU terminal is reduced. When the invention is used, the invention not only can automatically and accurately detect the pressure of each wheel cylinder and judge whether the master cylinder pressure sensor 3 has a fault in the working process, but also reduces the carrying load of the ECU terminal in the running process and improves the running efficiency.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.